A 265/50R22 tire is 32.4 inches (824 mm) tall and 10.4 inches wide. The sidewall is 50% of the width, 5.2 inches, on a 22-inch wheel, and the tire turns about 622 times per mile.
In flotation terms that is about 32.4x10.4R22, closest to the common 33x12.50R22 (33.0"). People often call it a 32-inch tire.
The size most often compared with it is 275/45R22, which is 0.7" shorter (−2.1%). At an indicated 60 mph you would be doing 58.7 mph on it.